7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.005 Low
EPSS
Percentile
75.6%
Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled
for the HTTP/2 module and on certain traffic edge patterns, logging
statements were made on the wrong connection, causing concurrent use of
memory pools. Configuring the LogLevel of mod_http2 above “info” will
mitigate this vulnerability for unpatched servers.
httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11993
launchpad.net/bugs/cve/CVE-2020-11993
nvd.nist.gov/vuln/detail/CVE-2020-11993
security-tracker.debian.org/tracker/CVE-2020-11993
ubuntu.com/security/notices/USN-4458-1
www.cve.org/CVERecord?id=CVE-2020-11993
www.openwall.com/lists/oss-security/2020/08/07/3
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.005 Low
EPSS
Percentile
75.6%